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Artyom0805 [142]
3 years ago
15

Help me out with this pe question plz :c

Physics
2 answers:
blagie [28]3 years ago
6 0

Answer:

the first one is a group 1 and the second one is d all of the above

Explanation:

yaroslaw [1]3 years ago
3 0

Answer:

all of the above

Explanation:

all of them improve your cardio

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What is the potential energy of a 0.5 kg ball sitting on a table 1 meter
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Read 2 more answers
Ax = 44.4 m and Ay = 25.1 m<br> Find the magnitude of the<br> vector.
max2010maxim [7]

Answer:

The magnitude of the vector A is <u>51 m.</u>

Explanation:

Given:

The horizontal component of a vector A is given as:

A_x=44.4\ m

The vertical component of a vector A is given as:

A_y=25.1\ m

Now, we know that, a vector A can be resolved into two mutually perpendicular components; one along the x axis and the other along the y axis. The magnitude of the vector A can be written as the square root of the sum of the squares of each component.

Therefore, the magnitude of vector A is given as:

|\overrightarrow A|=\sqrt{A_{x}^2+A_{y}^2}

Now, plug in 44.4 for A_x, 25.1 for A_y and solve for the magnitude of A. This gives,

|\overrightarrow A|=\sqrt{(44.4)^2+(25.1)^2}\\|\overrightarrow A|=\sqrt{1971.36+630.01}\\|\overrightarrow A|=\sqrt{2601.37}\\|\overrightarrow A|=51\ m

Therefore, the magnitude of the vector A is 51 m.

6 0
3 years ago
1.0 liter of 20c water is mixed with 4 liters of 40c water. What will be the temperature of this mixture
Virty [35]

Answer:

36°C

Explanation:

Heat gained by the cold water = heat lost by the warm water

mCΔT = mCΔT

(1000 g) (4.184 J/g/K) (T − 20°C) = (4000 g) (4.184 J/g/K) (40°C − T)

1000 (T − 20°C) = 4000 (40°C − T)

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Answer:

im sorry but what is the question please tell me in the comments s i can help you

Explanation:

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